Linear parameter varying controller for a small turboshaft engine
Permanent URL:
http://hdl.handle.net/2047/d20001226
Shafai, Bahram (Committee member)
Gutz, David (Committee member)
A model of a General Electric T700 turboshaft engine and baseline control system were developed in Simulink using a NASA paper written by Mark G. Ballin. The engine plant was linearized at engine core speed points between 76% and 100% at intervals of 2%. The LPV power turbine speed controller was developed using linearized plants derived from the Simulink model. The LPV controller was then compared to the baseline control system showing performance greater than or equal to the baseline controller with a single set of weighting functions. The referee transients used to determine a performance comparison included steps and ramps in power turbine speed reference, helicopter collective load disturbances and uncompensated helicopter rotor load disturbances.
This research shows that an LPV controller can be applied to a small turboshaft engine application. It is also shown that while the LPV controller is more complex that is should trade well against the traditional SISO methods based on tuning effort and performance.
electrical engineering
engine control
linear parameter varying
LPV
T700
Electrical and Computer Engineering
Engineering
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